Opal-replaced “Phenocrysts” in Fresh Pumice from 1817 Phreatomagmatic Deposits from Kawah Ijen, East Java, Indonesia: Implications for Eruptive Timescales?

Jacob B. Lowenstern1, Heather Michelle Nicholson Wright2, Vincent van Hinsberg3, Kim Berlo3, Kayla Iacovino4 and Ilya Bindeman5, (1)USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States, (2)USGS, Baltimore, MD, United States, (3)McGill University, Earth & Planetary Sciences, Montreal, QC, Canada, (4)USGS, Menlo Park, CA, United States, (5)University of Oregon, Department of Earth Sciences, Eugene, OR, United States
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